[Boost-build] Calling qt4.jam from a custom location

Subject: [Boost-build] Calling qt4.jam from a custom location
From: Sherwood Hu (sherwood_at_[hidden])
Date: 2009-09-24 16:25:35

I am working on Windows, VC 8.0.

I modified qt4.jam in order to produce 32-bit and 64-bit applications
simultaneously.  It worked. 

Now I want to move this modified qt4.jam to a custom location under the
project directory so that we can put it into source control. 

import qt4 ;
import cast ;
if ! [ qt4.initialized ]
{
    path-constant qt4-path : ../../lib/qt4 ; 
    ECHO "Use QT4 from the custom path" $(qt4-path) ;
    using qt4 : $(qt4-path) ;
}

I copied the file to ../../lib/qt4 directory, and change the import
statement:

import ../../lib/qt4/qt4 ;

It complained that it could load modules.jam. 

How to modify the following `import' statements so that they can be
located:

import modules ;
import feature ;
import errors ;
import type ;
import "class" : new ;
import generators ;
import project ;
import toolset : flags ;
import os ;
import virtual-target ;